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P0622 Diagnostic Trouble Code Discussion for April 2013

Generator Field Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0622
Help Request Posted
2006 Mercury Grand Marquis GS 4.6L Cuts out, Shutdown VIN: 2MEFM74W56
P0622: Charging system Fault. ... this 2006 Marquis came with customer concern Engine Shutdown, self test found P2105, P2107, p0600 and P0622 all in memory , KOEF and KOER pass, cleaned the throttle body, checked the wiring harnis , cleaned the grounds,replaced PCM relay,replaced the PCM w...
April 30, 2013